Jensen, R. J., Wagner, S., & National Council of Teachers of Mathematics. Research Interpretation Project. (1993). Research ideas for classroom: Early childhood mathematics. Macmillan.
Čikaški stil citiranja (17. izdanje)Jensen, Robert J., Sigrid Wagner, i National Council of Teachers of Mathematics. Research Interpretation Project. Research Ideas for Classroom: Early Childhood Mathematics. New York: Macmillan, 1993.
MLA način citiranja (9. izdanje)Jensen, Robert J., et al. Research Ideas for Classroom: Early Childhood Mathematics. Macmillan, 1993.
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